/Engine/Source/Runtime/RHI/Public/RHIResources.h
Shaders that will be invoked when ray intersects geometry. If this table is empty, then a built-in default shader will be used for all geometry, using FDefaultPayload.
void SetHitGroupTable ( const [TArrayView](API\Runtime\Core\Containers\TArrayView)< [FRHIRayTracingShader](API\Runtime\RHI\FRHIRayTracingShader) * > & InHitGroups, uint64 Hash )